Great Planes Slot Machine Motorized Hinge Slotting Tool-110V With Great Planes' electric-powered Slot Machine, you can cut ALL of your kit's hinge slots in about 10 minutes! Quickly cuts clean, perfect hinge slots-without gouging or being hindered by hard spots in the wood; also works well for cutting sheet stock such as aileron servo openings. Comes fully assembled and ready to use. Rugged, injection-molded body is comfortable to hold and lasts a lifetime. Low-profile power switch ensures that the Slot Machine will be turned "on" only when you're ready to use it. Comes with two preinstalled, replaceable blades sized to fit all CA hinges; blades for nylon hinges are available separately. Knife blades gouge and compress the wood while they cut. If you do not insert the hinge immediately, the compressed wood often expands back to it's original shape, requiring you to cut the slot again before installing your hinge. Even then it may bond improperly, or bind in flight--possibly causing a crash. The back-and-forth motion of the Slot Machine's saw blades removes wood while cutting, rather than gouging and compressing it like knife blades do. The result is a perfect pocket for your hinge. The Slot Machine makes hinge slotting as easy as: mark, cut and use!